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प्रश्न
Tick the most appropriate answer.
Friction is offered by
पर्याय
solids
liquids
gases
all of these
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उत्तर
all of these
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संबंधित प्रश्न
Give examples to show that friction is both a friend and a foe.
Give an example to illustrate the existence of the force of friction.
Answer the following.
What do you understand by a force?
Fill in the blank.
.................... is the SI unit of force.
Answer the following in short.
What do you understand by normal force?
Fill in the blank.
Rolling friction offers ............. resistance than sliding friction.
Fill in the blank.
Rolling friction is ........... than sliding friction.
Is there any possibility of making a special device to measure the magnitude of friction directly?
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
Assertion: There is a danger of a vehicle skidding on a wet road.
Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.
